{"version":3,"sources":["../src/cache-invalidation.ts"],"sourcesContent":["export type FarmCacheInvalidationListener = (key: string) => void;\nexport type FarmCacheTaskListener = (task: Promise<void>) => void;\n\nexport const FARM_CACHE_INVALIDATION_HEADER = \"x-farm-cache-invalidations\";\n\ntype FarmCacheInvalidationState = {\n  listeners: Set<FarmCacheInvalidationListener>;\n  taskListeners: Set<FarmCacheTaskListener>;\n};\n\nconst FARM_CACHE_INVALIDATION_STATE = Symbol.for(\"farm.cacheInvalidationState\");\nconst globalState = globalThis as typeof globalThis & {\n  [FARM_CACHE_INVALIDATION_STATE]?: FarmCacheInvalidationState;\n};\n\nfunction getFarmCacheInvalidationState(): FarmCacheInvalidationState {\n  return (globalState[FARM_CACHE_INVALIDATION_STATE] ??= {\n    listeners: new Set(),\n    taskListeners: new Set(),\n  });\n}\n\nfunction warnFarmCacheListenerError(scope: string, error: unknown): void {\n  const detail = error instanceof Error ? (error.stack ?? error.message) : String(error);\n  console.warn(`[farm:cache] ${scope} listener failed: ${detail}`);\n}\n\nexport function notifyFarmCacheInvalidation(key: string): void {\n  if (typeof key !== \"string\" || key.length === 0) return;\n\n  for (const listener of getFarmCacheInvalidationState().listeners) {\n    // Isolate listeners: one throwing observer must not abort the remaining\n    // listeners (or the rest of a multi-key batch in applyFarmCacheInvalidations)\n    // and must not surface as a 500 when invalidation runs inside a request.\n    try {\n      listener(key);\n    } catch (error) {\n      warnFarmCacheListenerError(\"invalidation\", error);\n    }\n  }\n}\n\nexport function notifyFarmCacheTask(task: Promise<void>): void {\n  for (const listener of getFarmCacheInvalidationState().taskListeners) {\n    try {\n      listener(task);\n    } catch (error) {\n      warnFarmCacheListenerError(\"task\", error);\n    }\n  }\n}\n\nexport function applyFarmCacheInvalidations(keys: unknown): void {\n  if (!Array.isArray(keys)) return;\n\n  for (const key of keys) {\n    if (typeof key === \"string\") {\n      notifyFarmCacheInvalidation(key);\n    }\n  }\n}\n\nexport function encodeFarmCacheInvalidations(keys: readonly string[]): string | null {\n  const normalized = Array.from(\n    new Set(keys.filter((key) => typeof key === \"string\" && key.length > 0)),\n  );\n  if (normalized.length === 0) return null;\n  return encodeURIComponent(JSON.stringify(normalized));\n}\n\nexport function decodeFarmCacheInvalidations(value: string | null | undefined): readonly string[] {\n  if (!value) return [];\n\n  try {\n    const parsed = JSON.parse(decodeURIComponent(value));\n    return Array.isArray(parsed)\n      ? Array.from(\n          new Set(parsed.filter((key): key is string => typeof key === \"string\" && key.length > 0)),\n        )\n      : [];\n  } catch {\n    return [];\n  }\n}\n\nexport function subscribeFarmCacheInvalidation(\n  listener: FarmCacheInvalidationListener,\n): () => void {\n  const state = getFarmCacheInvalidationState();\n  state.listeners.add(listener);\n  return () => state.listeners.delete(listener);\n}\n\nexport function subscribeFarmCacheTask(listener: FarmCacheTaskListener): () => void {\n  const state = getFarmCacheInvalidationState();\n  state.taskListeners.add(listener);\n  return () => state.taskListeners.delete(listener);\n}\n"],"mappings":";;;;;AAGO,IAAM,iCAAiC;AAO9C,IAAM,gCAAgC,uBAAO,IAAI,6BAA6B;AAC9E,IAAM,cAAc;AAIpB,SAAS,gCAA4D;AACnE,SAAQ,4FAA+C;AAAA,IACrD,WAAW,oBAAI,IAAI;AAAA,IACnB,eAAe,oBAAI,IAAI;AAAA,EACzB;AACF;AALS;AAOT,SAAS,2BAA2B,OAAe,OAAsB;AACvE,QAAM,SAAS,iBAAiB,QAAS,MAAM,SAAS,MAAM,UAAW,OAAO,KAAK;AACrF,UAAQ,KAAK,gBAAgB,KAAK,qBAAqB,MAAM,EAAE;AACjE;AAHS;AAKF,SAAS,4BAA4B,KAAmB;AAC7D,MAAI,OAAO,QAAQ,YAAY,IAAI,WAAW,EAAG;AAEjD,aAAW,YAAY,8BAA8B,EAAE,WAAW;AAIhE,QAAI;AACF,eAAS,GAAG;AAAA,IACd,SAAS,OAAO;AACd,iCAA2B,gBAAgB,KAAK;AAAA,IAClD;AAAA,EACF;AACF;AAbgB;AAeT,SAAS,oBAAoB,MAA2B;AAC7D,aAAW,YAAY,8BAA8B,EAAE,eAAe;AACpE,QAAI;AACF,eAAS,IAAI;AAAA,IACf,SAAS,OAAO;AACd,iCAA2B,QAAQ,KAAK;AAAA,IAC1C;AAAA,EACF;AACF;AARgB;AAUT,SAAS,4BAA4B,MAAqB;AAC/D,MAAI,CAAC,MAAM,QAAQ,IAAI,EAAG;AAE1B,aAAW,OAAO,MAAM;AACtB,QAAI,OAAO,QAAQ,UAAU;AAC3B,kCAA4B,GAAG;AAAA,IACjC;AAAA,EACF;AACF;AARgB;AAUT,SAAS,6BAA6B,MAAwC;AACnF,QAAM,aAAa,MAAM;AAAA,IACvB,IAAI,IAAI,KAAK,OAAO,CAAC,QAAQ,OAAO,QAAQ,YAAY,IAAI,SAAS,CAAC,CAAC;AAAA,EACzE;AACA,MAAI,WAAW,WAAW,EAAG,QAAO;AACpC,SAAO,mBAAmB,KAAK,UAAU,UAAU,CAAC;AACtD;AANgB;AAQT,SAAS,6BAA6B,OAAqD;AAChG,MAAI,CAAC,MAAO,QAAO,CAAC;AAEpB,MAAI;AACF,UAAM,SAAS,KAAK,MAAM,mBAAmB,KAAK,CAAC;AACnD,WAAO,MAAM,QAAQ,MAAM,IACvB,MAAM;AAAA,MACJ,IAAI,IAAI,OAAO,OAAO,CAAC,QAAuB,OAAO,QAAQ,YAAY,IAAI,SAAS,CAAC,CAAC;AAAA,IAC1F,IACA,CAAC;AAAA,EACP,QAAQ;AACN,WAAO,CAAC;AAAA,EACV;AACF;AAbgB;AAeT,SAAS,+BACd,UACY;AACZ,QAAM,QAAQ,8BAA8B;AAC5C,QAAM,UAAU,IAAI,QAAQ;AAC5B,SAAO,MAAM,MAAM,UAAU,OAAO,QAAQ;AAC9C;AANgB;AAQT,SAAS,uBAAuB,UAA6C;AAClF,QAAM,QAAQ,8BAA8B;AAC5C,QAAM,cAAc,IAAI,QAAQ;AAChC,SAAO,MAAM,MAAM,cAAc,OAAO,QAAQ;AAClD;AAJgB;","names":[]}